Last name وايس (Wais 
, Waiss 
, وايس 
) , throughout the world, is quite a common cognomen. The surname وايس is habitual in Djibouti, where it is a common surname, Austria, where it is quite a rare surname, and Afghanistan. In absolute terms, it is commonest in Djibouti, Afghanistan, and Indonesia. Also, وايس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wais | Austria, Poland, Djibouti, Indonesia, Afghanistan |
| Waiss | Austria, Germany, Poland, Djibouti, United States |
| وايس | Syria, Turkey |